Small change in the formatters.

Author: offspringer

Mvc.Datatables.Sample.New/App_Start/WebApiConfig.cs

@@ -1,5 +1,4 @@
 using Mvc.Datatables.Formatters;
-using Mvc.Datatables.Serialization;
 using Newtonsoft.Json;
 using System.Net.Http.Formatting;
 using System.Web.Http;
@@ -21,12 +20,8 @@ public static void Register(HttpConfiguration config)
                 defaults: new { id = RouteParameter.Optional }
             );
 
-            // Replace default json converter
-            config.Formatters.Clear();
-            config.Formatters.Add(new JsonMediaTypeFormatter());
-            config.Formatters.Add(new DatatablesMediaTypeFormatter());
-            config.Formatters.Add(new XmlMediaTypeFormatter());
-            config.Formatters.Add(new FormUrlEncodedMediaTypeFormatter());
+            // Add a custom formatter
+            config.Formatters.Insert(0, new DatatablesMediaTypeFormatter());
 
             // Add a custom converter
             foreach (var formatter in GlobalConfiguration.Configuration.Formatters)

Mvc.Datatables/Formatters/DatatablesMediaTypeFormatter.cs

@@ -1,11 +1,13 @@
 using Mvc.Datatables.Serialization;
 using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 using System;
 using System.IO;
 using System.Net;
 using System.Net.Http;
 using System.Net.Http.Formatting;
 using System.Net.Http.Headers;
+using System.Text;
 using System.Threading.Tasks;
 
 namespace Mvc.Datatables.Formatters
@@ -27,8 +29,10 @@ public DatatablesMediaTypeFormatter()
 
 			this.SerializerSettings.Converters.Add(new FilterRequestConverter());
 			this.SerializerSettings.Converters.Add(new PageResponseConverter());
+            this.SerializerSettings.Converters.Add(new StringEnumConverter());
 
 			this.SerializerSettings.Formatting = Formatting.Indented;
+            this.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
 		}
 
 		public new static MediaTypeHeaderValue DefaultMediaType
@@ -64,12 +68,32 @@ public override bool CanWriteType(Type type)
 
 		public override Task<object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
 		{
-			return base.ReadFromStreamAsync(type, readStream, content, formatterLogger);
+            var task = Task<object>.Factory.StartNew(() =>
+            {
+                var sr = new StreamReader(readStream);
+                var jreader = new JsonTextReader(sr);
+
+                var ser = JsonSerializer.Create(this.SerializerSettings);
+
+                object val = ser.Deserialize(jreader, type);
+                return val;
+            });
+
+            return task;
 		}
 
 		public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
 		{
-			return base.WriteToStreamAsync(type, value, writeStream, content, transportContext);
+            var task = Task.Factory.StartNew(() =>
+            {
+                string json = JsonConvert.SerializeObject(value, this.SerializerSettings);
+
+                byte[] buf = Encoding.Default.GetBytes(json);
+                writeStream.Write(buf, 0, buf.Length);
+                writeStream.Flush();
+            });
+
+            return task;
 		}
 	}
 }

Mvc.Datatables/Formatters/LegacyDatatablesMediaTypeFormatter.cs

@@ -1,12 +1,14 @@
 using Mvc.Datatables.Serialization;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 using System;
 using System.IO;
 using System.Net;
 using System.Net.Http;
 using System.Net.Http.Formatting;
 using System.Net.Http.Headers;
+using System.Text;
 using System.Threading.Tasks;
-using Newtonsoft.Json;
 
 namespace Mvc.Datatables.Formatters
 {
@@ -27,8 +29,10 @@ public LegacyDatatablesMediaTypeFormatter()
 
 			this.SerializerSettings.Converters.Add(new LegacyFilterRequestConverter());
 			this.SerializerSettings.Converters.Add(new LegacyPageResponseConverter());
+            this.SerializerSettings.Converters.Add(new StringEnumConverter());
 
-			this.SerializerSettings.Formatting = Formatting.Indented;
+            this.SerializerSettings.Formatting = Formatting.Indented;
+            this.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
 		}
 
 		public new static MediaTypeHeaderValue DefaultMediaType
@@ -62,14 +66,34 @@ public override bool CanWriteType(Type type)
 			return false;
 		}
 
-		public override Task<object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
-		{
-			return base.ReadFromStreamAsync(type, readStream, content, formatterLogger);
-		}
+        public override Task<object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
+        {
+            var task = Task<object>.Factory.StartNew(() =>
+            {
+                var sr = new StreamReader(readStream);
+                var jreader = new JsonTextReader(sr);
 
-		public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
-		{
-			return base.WriteToStreamAsync(type, value, writeStream, content, transportContext);
-		}
+                var ser = JsonSerializer.Create(this.SerializerSettings);
+
+                object val = ser.Deserialize(jreader, type);
+                return val;
+            });
+
+            return task;
+        }
+
+        public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
+        {
+            var task = Task.Factory.StartNew(() =>
+            {
+                string json = JsonConvert.SerializeObject(value, this.SerializerSettings);
+
+                byte[] buf = Encoding.Default.GetBytes(json);
+                writeStream.Write(buf, 0, buf.Length);
+                writeStream.Flush();
+            });
+
+            return task;
+        }
 	}
 }

Mvc.Datatables/Properties/AssemblyInfo.cs

@@ -30,5 +30,5 @@
 //
 // You can specify all the values or you can default the Revision and Build Numbers
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.0.0.2")]
-[assembly: AssemblyFileVersion("1.0.0.2")]
+[assembly: AssemblyVersion("1.0.0.3")]
+[assembly: AssemblyFileVersion("1.0.0.3")]